Advantech BSP for NXP based boards

This reference BSP adds minimalistic changes to the NXP layers to support Advantech boards. Note that some boards may have only limited features with this BSP. However, more features can be added in another layer on top of this layer.

For build instructions, check the README.md in the Advantech fork of the NXP imx-manifest repository, which adds manifests including this layer.

Supported Boards

The following boards are supported by this layer:

• ROM-2620-CD-A1 1GB (MACHINE=rom2620-ed91 NXP i.MX 8ULP)
• ROM-2820-CD-A1 2GB (rom2820-ed93 NXP i.MX 93)
• ROM-5722-CQ-A1 6GB (rom5722-db2510 NXP i.MX 8M Plus)
• RSB-3720-CD/CQ-A1/A2 6GB A1,A2 (rsb3720 rsb3720-6g NXP i.MX 8M Plus)
• RSB-3720-CD/CQ-A2 4GB A2 (rsb3720-4g NXP i.MX 8M Plus)

Preliminary support:

• AOM-5521 8GB (MACHINE=aom5521-db2510 NXP i.MX 95)
• ROM-5720-CD/CQ-A2 2GB (rom5720-db5901 NXP i.MX 8M)
• ROM-5721-CD-A1/A2 1GB (rom5721-db5901-1g NXP i.MX 8M Mini)
• ROM-5721-CQ-A1/A2 2GB (rom5721-db5901-2g NXP i.MX 8M Mini)

Supported Linux Features

ROM-2620 (on ROM-ED91 carrier board)

Device	Status	Comment
SDHC0	✅	eMMC
SDHC2	✅	SD Card
Ethernet	✅	100Mbps
USB1-1	✅	USB 2.0
USB1-2	✅	USB 2.0
USB-OTG	⚠️	Not tested (micro-USB connector)
MIPI-DSI	✅	G070VW01 panel via LVDS bridge
MIPI-CSI	⚠️
LPUART4	✅⚠️	COM-A (2-wire, 4-wire HWFC not tested)
LPUART5	✅	COM-D Linux Console
LPUART6	✅	COM-C (2-wire)
LPI2C0	❌	On CAM connector
LPI2C6	✅	Lontium LT9211 exists
LPI2C7	✅
PWM 1 to 5	❌	Need to be accessed from M33
LPUART1	❌	Need to be accessed from M33
LPUART2	❌	Need to be accessed from M33
FLEXSPI0	❌	Need to be accessed from M33
LPSPI3	❌	Need to be accessed from M33
CAN	❌	Need to be accessed from M33
GPIO A,B,C	❌	Need to be accessed from M33
RTC	✅	Internal RTC, supports timer wake events
Watchdog	✅	Internal watchdog
Secure Boot AHAB	❌	Not tested

ROM-2820 (on ROM-ED93 carrier board)

Device	Status	Comment
SDHC0	✅	eMMC
SDHC2	✅	SD Card
ETH0	✅	1Gbps
ETH1	✅	1Gbps
USB1-1	✅	USB 2.0
USB1-2	✅	USB 2.0
USB-OTG	❌
MIPI-LVDS	✅	Tested with IDK-1107WR
MIPI-DSI	✅⚠️	Not tested
LPUART1	✅	COM-E Linux Console
LPUART2	✅	COM-C (2-wire)
LPUART3	✅	COM-D (2-wire)
LPUART5	✅⚠️	COM-A (2-wire, 4-wire HWFC not tested)
LPUART6	✅⚠️	COM-B (2-wire, 4-wire HWFC not tested)
LPI2C0	✅
LPI2C1	✅
LPI2C2	✅
LPI2C4	✅
LPI2C7	✅
PWM0	⚠️	Not tested
PWM1	❌
LPSPI3	⚠️	Not tested
NPU	⚠️	Not tested (i.MX 93 has built-in an Ethos™-U65 NPU)
CAN0	✅
CAN1	✅
GPIO ⚠️	Not tested
RTC0	✅	External I2C RTC (rx8900)
RTC1	✅	Internal RTC, supports timer wake events
Watchdog	✅	Internal watchdog
Secure Boot AHAB	❌	Not tested

ROM-5720 (on SOM-DB5901 carrier board)

MP: preliminary support MQ: preliminary support, issues with suspend to RAM, external watchdog

Device	Status	Comment
SDHC0	✅	eMMC
SDHC2	✅	SD Card
ETH0	✅	1Gbps (Qualcomm AR8035-AL1B-R)
ETH1	✅	1Gbps (PCI-E, RTL8119I-CG)
USB1	✅	USB 3.0
USB2	❌	USB 2.0
USB3	❌	USB-C
USB-OTG	❌
HDMI	✅
MIPI-LVDS	❌	(DSI to LVDS bridge)
UART1	✅	COM3 Linux Console (2-wire)
UART2	✅	COM2 (2-wire)
UART3	✅	COM0 (4-wire)
UART4	✅	COM1 (2-wire)
I2C1	⚠️	Not tested
I2C2	⚠️	Not tested
I2C3	⚠️	Not tested
I2C4	⚠️	Not tested
M.2	⚠️	Not tested (M.2 key E connector)
PWM1	❌
PWM2	❌
PWM3	❌
PWM4	❌
QSPI0	✅	n25q256a (jedec,spi-nor)
GPIO	⚠️	Not tested
RTC0	✅	External I2C RTC (rx8900)
RTC1	✅	Internal RTC, supports timer wake events
TPM	❌	(st33htpm-i2c not yet upstreamed to tpm_tis_i2c.c)
Watchdog	✅	External I2C Advantech watchdog (MSP430-based)
Secure Boot HABv4	⚠️	Not tested, likely to work (similar to ROM-5721)

ROM-5721 (on SOM-DB5901 carrier board)

CQ: preliminary support

Device	Status	Comment
SDHC0	✅	eMMC
SDHC2	✅	SD Card
ETH	✅	1Gbps
USB1	⚠️	Not tested
USB2	⚠️	Not tested
USB3	⚠️	Not tested
USB-OTG	❌
MIPI-LVDS	✅	AUO G070 and G215
UART1	✅	COM3 Linux Console (2-wire)
UART2	⚠️	M.2 (4-wire) - Not tested
UART3	❌	Pending
UART4	❌	Pending
I2C1	⚠️	Not tested
I2C2	⚠️	Not tested
I2C3	⚠️	Not tested
I2C4	⚠️	Not tested
M.2	⚠️	Not tested (M.2 key E connector)
PWM1	❌
PWM2	❌
PWM3	❌
PWM4	✅	LVDS backlight
QSPI0	✅	n25q256a (jedec,spi-nor)
GPIO	⚠️	Not tested
RTC	✅	Internal RTC, supports timer wake events
RTC0	✅	External I2C RTC (S35390)
RTC1	✅	Internal RTC, supports timer wake events
TPM	⚠️	Not tested (st33htpm-i2c)
Watchdog0	✅	Internal watchdog
Watchdog1	✅	External I2C Advantech watchdog (MSP430-based)
Secure Boot HABv4	✅	Tested (full chain of trust + locked boot loader)

ROM-5722 (on SOM-DB2510 carrier board)

Device	Status	Comment
SDHC2	✅	eMMC
SDHC1	✅	SD Card
ETH0	✅	1Gbps
ETH1	✅	1Gbps
USB1	✅	USB 2.0
USB2	✅	USB 2.0
USB-C	✅	USB 3.2
USB-OTG	⚠️	Not tested (micro-USB connector)
HDMI	✅
MIPI-DSI	❌
MIPI-CSI	❌
UART1	✅⚠️	COM3-A (2-wire, 4-wire HWFC not tested)
UART2	✅	COM4-A, Linux console
UART3	✅⚠️	COM3-B (2-wire, 4-wire HWFC not tested)
UART4	✅	COM4-B (2-wire)
LPI2C0	⚠️	Not tested
LPI2C1	⚠️	Not tested
LPI2C2	⚠️	Not tested
LPI2C3	⚠️	Not tested
LPI2C4	⚠️	Not tested
NPU	⚠️	Not tested (i.MX8M Plus has built-in a Vivante VIP8000Nano NPU)
PWM 2	⚠️	Not tested
PWM 3	⚠️	Not tested
GPIO	✅	Tested on SOM-DB2510 (CN9 connector)
PCI-E	❌	Pending
CAN0	✅
CAN1	✅
RTC0	✅	External I2C RTC (S35390)
RTC1	✅	Internal RTC, supports timer wake events
Watchdog0	✅	Internal watchdog
Watchdog1	✅	External I2C Advantech watchdog (MSP430-based)
Secure Boot HABv4	⚠️	Not tested, likely to work (similar to ROM-5721)

RSB-3720

Device	Status	Comment
SDHC2	✅	eMMC
SDHC1	✅	SD Card
ETH0	✅	1Gbps
ETH1	✅	1Gbps
USB1-1	✅	USB 3.2
USB1-2	✅	USB 2.0
HDMI	✅
MIPI-DSI	❌
MIPI-CSI	❌
UART1	✅⚠️	COM2, M2 connector (2-wire, 4-wire HWFC), not tested
UART2	✅	COM3, via UIO expansion (2-wire)
UART3	✅⚠️	COM1, Linux console (2-wire, 4-wire HWFC), HWFC not tested
UART4	✅	COM4, via UIO expansion (2-wire)
LPI2C0	⚠️	Not tested
LPI2C1	⚠️	Not tested
LPI2C2	⚠️	Not tested
LPI2C3	⚠️	Not tested
LPI2C6	⚠️	Not tested
NPU	⚠️	Not tested (i.MX8M Plus has built-in a Vivante VIP8000Nano NPU)
PWM 2	⚠️	Not tested
PWM 3	⚠️	Not tested
GPIO	❌
PCI-E	⚠️	Not tested
CAN0	✅
CAN1	✅
RTC0	✅	External I2C RTC (S35390)
RTC1	✅	Internal RTC, supports timer wake events
Watchdog0	✅	Internal watchdog
Watchdog1	✅	External I2C Advantech watchdog (MSP430-based)
Secure Boot HABv4	⚠️	Not tested, likely to work (similar to ROM-5721)

AOM-5521 (on SOM-DB2510 carrier board)

Device	Status	Comment
USDHC1	⚠️	eMMC 5.1 (not tested)
USDHC2	⚠️	SD Card (not tested)
ETH0	⚠️	Ethernet (not tested)
ETH1	⚠️	Ethernet with TSN (not tested)
USB1	⚠️	USB 3.2 Gen1 (not tested)
USB2	⚠️	USB 2.0 (not tested)
LPUART1	⚠️	Console (not tested)
I2C	⚠️	Not tested
CAN-FD	⚠️	Not tested
GPIO	⚠️	Not tested
NPU	⚠️	2 TOPS NPU (not tested)
GPU	⚠️	Mali-G310 (not tested)
VPU	⚠️	4K video processing (not tested)
HDMI	⚠️	Not tested
MIPI-DSI	⚠️	4-lane (not tested)
LVDS	⚠️	Dual-channel (not tested)
PCIe	⚠️	2x Gen 3.0 (not tested)
M.2	⚠️	Not tested
mini PCIe	⚠️	Not tested
Secure Boot	⚠️	Not tested

Note: This is preliminary support for AOM-5521. All features require testing and validation.